We tested CodeRabbit, Greptile, and Qodo on pricing, security history, and independently-verified accuracy claims to find the best AI code review tool for pull requests.
AI code review tools comment on pull requests automatically, flagging bugs, style issues, and risky changes before a human reviewer looks at the code. We scored three dedicated products, CodeRabbit, Greptile, and Qodo, on pricing, security disclosure history, and how their accuracy claims hold up against independent scrutiny. CodeRabbit leads at 6.7/10 (Good), ahead of Greptile at 6.3/10 and Qodo at 6.2/10 (both Fair), though every tool here carries a documented security incident, a self-reported benchmark, or both. Every number traces to our liveFacts database, last verified July 2026.
AI-powered code review for pull requests, IDE, and CLI
From $0/mo — check billing term.
AI code review agent that indexes your whole repo, not just the diff
How we score — every tool runs the same pipeline before a number is published.
Free tier includes unlimited public and private repositories with PR summarization, IDE, and CLI reviews (rate-limited, no credit card)
Ranks #1 by overall score. Free tier includes unlimited public and private repositories with PR summarization, IDE, and CLI reviews (rate-limited, no credit card); Integrates with four major git hosts: GitHub, GitLab, Azure DevOps, and Bitbucket.
Reviews the full repository graph rather than an isolated diff, letting it flag issues that span multiple files
Ranks #2 by overall score. Reviews the full repository graph rather than an isolated diff, letting it flag issues that span multiple files; Free tier for individual developers, plus free access for qualifying MIT or Apache licensed open source projects.
Multi-agent review pipeline (detection, judge, remediation) with a beta cross-repository dependency check
Ranks #3 by overall score. Multi-agent review pipeline (detection, judge, remediation) with a beta cross-repository dependency check; Supports GitHub, GitLab, Bitbucket, and Azure DevOps, plus Gitea through its open-source PR-Agent lineage.
Each tool earns a 0–10 score from six weighted dimensions, then a documented editorial adjustment for risks the formula under-weights. No paid placement — affiliate links never move a score. Read the full methodology →
Every accuracy claim in this space is contested. Greptile publishes an 82% bug catch rate for itself, but independent re-scoring by DeepSource and by competitor Augment Code put the same test closer to 45%. CodeRabbit fares worse in benchmarks run by its own competitors, Greptile, Entelligence, and DeepSource, each of which ranks its own product first. Qodo publishes its own F1, precision, and recall figures with no third-party audit found. Treat every headline percentage in this category as a vendor claim until you have run the tool against your own repository.
CodeRabbit and Greptile both offer a genuine, rate-limited free tier for individual use, plus broader free access for qualifying open-source projects. Qodo has no permanent free plan at all; new users get a 14-day trial, after which a paid Pro Team or Enterprise plan is required. If budget is the deciding factor, that difference matters more than any benchmark number.
Both CodeRabbit and Qodo have a documented, since-patched security incident worth knowing about. CodeRabbit ran an unsandboxed linter that let an attacker obtain its GitHub App private key in 2025, a vulnerability researchers nicknamed PwnedRabbit; the company patched it within days but did not publish a public writeup for about seven months. Qodo had a vulnerability chain, disclosed at the 38C3 conference, that reached remote code execution and exposed an AWS admin key twice between 2024 and 2025. Both companies say the issues are fixed and found no evidence of exploitation, but the history is part of the public record either way.
If your code cannot leave your own infrastructure, Greptile and Qodo both support on-prem or air-gapped Enterprise deployment with a choice of LLM provider. CodeRabbit also offers a self-hosted option plus a reverse tunnel connector for private git servers. All three require a separate enterprise conversation rather than a self-serve toggle for this tier.
GitHub Copilot ships a built-in pull request review feature, but in our testing its agentic review capability rates as the weakest part of an otherwise broadly-adopted product, so treat it as a bonus rather than a reason to choose Copilot on its own. Cursor separately sells Bugbot, a dedicated automated PR-review bot distinct from the Cursor editor; we have not yet independently scored Bugbot and it is not part of this ranking.
CodeRabbit ranks first in our testing at 6.7/10 (Good), ahead of Greptile at 6.3/10 and Qodo at 6.2/10, both rated Fair. CodeRabbit's combination of a genuine free tier, broad git-host support, and G2 rating of 4.8/5 outweighs its disputed benchmark standing and a past security incident.
It is a real number, but a self-reported one. Greptile designed, ran, and scored the benchmark itself. When DeepSource and competitor Augment Code re-scored the same test data with different judging rules, they reported a catch rate closer to 45% for Greptile. Verify results against your own codebase rather than the vendor figure.
CodeRabbit and Greptile both have real, usable free tiers for individual developers, plus broader free access for qualifying open-source projects. Qodo has no permanent free plan, only a 14-day trial before a paid plan is required.
CodeRabbit and Qodo have each disclosed a serious, since-patched security incident: CodeRabbit's PwnedRabbit linter vulnerability in 2025, and a Qodo vulnerability chain that reached remote code execution and leaked an AWS key twice between 2024 and 2025. Both companies say the issues are resolved with no evidence of exploitation. Greptile states SOC 2 Type II compliance and lets customers opt out of training on their code.
GitHub Copilot has a built-in PR review feature, but it is the weakest part of Copilot's feature set in our testing, so it is a reasonable bonus if you already pay for Copilot rather than a standalone reason to adopt it. Cursor also sells Bugbot, a separate dedicated review bot, which we have not yet independently scored.
Each tool is scored 0-10 across six weighted dimensions: capability (0.30), value (0.20), ease (0.15), privacy (0.15), support (0.10), and ecosystem (0.10), using official pricing, security disclosures, independent and vendor benchmarks, and sourced developer sentiment. Editorial overrides are documented where the formula alone understates a real risk, such as a disclosed security incident. See our methodology for the full breakdown.
CodeRabbit is the strongest all-around pick for automated pull request review right now, with the broadest git-host support and a genuinely usable free tier, but every tool in this category, including CodeRabbit, has either a disputed accuracy claim or a disclosed security incident worth reading about before you connect it to a production repository.